diff --git a/packages/frontend-plugin-api/src/extensions/SignInPageBlueprint.test.tsx b/packages/frontend-plugin-api/src/extensions/SignInPageBlueprint.test.tsx
new file mode 100644
index 0000000000..7bbeb4e5d7
--- /dev/null
+++ b/packages/frontend-plugin-api/src/extensions/SignInPageBlueprint.test.tsx
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2024 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import React from 'react';
+import { SignInPageBlueprint } from './SignInPageBlueprint';
+import { createExtensionTester } from '@backstage/frontend-test-utils';
+import { waitFor } from '@testing-library/react';
+
+describe('SignInPageBlueprint', () => {
+  it('should create an extension with sensible defaults', () => {
+    expect(
+      SignInPageBlueprint.make({
+        params: { loader: async () => () => <div /> },
+      }),
+    ).toMatchInlineSnapshot(`
+      {
+        "$$type": "@backstage/ExtensionDefinition",
+        "attachTo": {
+          "id": "app/root",
+          "input": "signInPage",
+        },
+        "configSchema": undefined,
+        "disabled": false,
+        "factory": [Function],
+        "inputs": {},
+        "kind": "sign-in-page",
+        "name": undefined,
+        "namespace": undefined,
+        "output": [
+          [Function],
+        ],
+        "toString": [Function],
+        "version": "v2",
+      }
+    `);
+  });
+
+  it('should return the component as the componentRef', async () => {
+    const MockSignInPage = () => <div>MockSignInPage</div>;
+
+    const extension = SignInPageBlueprint.make({
+      params: { loader: async () => () => <MockSignInPage /> },
+    });
+
+    const tester = createExtensionTester(extension);
+    expect(tester.data(SignInPageBlueprint.dataRefs.component)).toBeDefined();
+
+    const { getByText } = tester.render();
+
+    // todo(blam): need a better way to test this, currently fails.
+    await waitFor(() => {
+      expect(getByText('MockSignInPage')).toBeInTheDocument();
+    });
+  });
+});
diff --git a/packages/frontend-plugin-api/src/extensions/SignInPageBlueprint.tsx b/packages/frontend-plugin-api/src/extensions/SignInPageBlueprint.tsx
new file mode 100644
index 0000000000..01ba174efe
--- /dev/null
+++ b/packages/frontend-plugin-api/src/extensions/SignInPageBlueprint.tsx
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2024 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import React, { ComponentType, lazy } from 'react';
+import { createExtensionBlueprint } from '../wiring';
+import { createSignInPageExtension } from './createSignInPageExtension';
+import { SignInPageProps } from '@backstage/core-plugin-api';
+import { ExtensionBoundary } from '../components';
+
+export const SignInPageBlueprint = createExtensionBlueprint({
+  kind: 'sign-in-page',
+  attachTo: { id: 'app/root', input: 'signInPage' },
+  output: [createSignInPageExtension.componentDataRef],
+  dataRefs: {
+    component: createSignInPageExtension.componentDataRef,
+  },
+  *factory(
+    {
+      loader,
+    }: {
+      loader: (opts: {
+        config: typeof config;
+        inputs: typeof inputs;
+      }) => Promise<ComponentType<SignInPageProps>>;
+    },
+    { config, inputs, node },
+  ) {
+    const ExtensionComponent = lazy(() =>
+      loader({ config, inputs }).then(component => ({ default: component })),
+    );
+
+    yield createSignInPageExtension.componentDataRef(props => (
+      <ExtensionBoundary node={node} routable>
+        <ExtensionComponent {...props} />
+      </ExtensionBoundary>
+    ));
+  },
+});